The TB blood test can be done instead of a TB skin test (Mantoux). You should have a TB blood (or TB skin test) if you: 1  have HIV infection or your immune system is not very strong.  Children less than 5 years old should have the TB skin test instead of the TB blood test. Ask your health care provider. They will draw a small amount of blood and send it to a laboratory. Your health care provider should tell you if your test result is ânegativeâ or âpositiveâ in a few days.
10 Ways Sugar Harms Your Health. 1  1. Sugar causes blood glucose to spike and plummet. 2  3. Sugar interferes with immune function. 3  3. Romieu, I., Lazcano-Ponce, E., Sanchez-Zamorano, L.M., et al., âCarbohydrates and the Risk of Breast Cancer Among Mexican Women..
How Blood Sugar Affects Your Body. When you have diabetes, your blood sugar (glucose) levels are consistently high. Over time, this can damage your body and lead to many other problems. The doctor tests your blood sugar level after fasting for 8 hours and itâs higher than 126 mg/dL. 2  Oral glucose tolerance test. 3  After fasting for 8 hours, you get a special sugary drink. 4  Two hours later your sugar level is higher than 200. 5  Random check.